[ethan_smith]

You're right about the wildcard certificate blind spot. An attacker with a wildcard cert for .example.com could have exploited this without appearing in CT logs specifically for driverhub.asus.com. domains. This is why CT log monitoring alone isn't sufficient for detecting these types of subdomain takeover vulnerabilities.

[ZoneZealot]

It's 'driverhub.asus.com.example.com.' not 'driverhub.example.com.', therefore entirely discoverable in CT logs by searching for (regex): (driverhub|\*)\.asus\.com\.